/// <inheritdoc />
public ObjectId SaveInNewRepository(Signature signature, string message, RepositoryDescription repositoryDescription, bool isBare = false)
{
if (signature == null)
{
throw new ArgumentNullException(nameof(signature));
}
if (message == null)
{
throw new ArgumentNullException(nameof(message));
}
if (repositoryDescription == null)
{
throw new ArgumentNullException(nameof(repositoryDescription));
}
LibGit2Sharp.Repository.Init(repositoryDescription.Path, isBare);
return(_repositoryProvider.Execute(repositoryDescription, repository =>
{
var all = this.Flatten().Select(o => new MetadataTreeEntryChanges(o.GetDataPath(), ChangeKind.Added, @new: o));
var changes = new MetadataTreeChanges(this, all.ToImmutableList());
var result = repository.CommitChanges(changes, message, signature, signature, hooks: _hooks);
if (result != null)
{
SetRepositoryData(repositoryDescription, result.Id);
}
return result?.Id;
}));
}
/// <summary>
/// Scaffolds a code based migration to apply any pending model changes to the database.
/// </summary>
/// <param name="start">The start.</param>
/// <param name="end">The end.</param>
/// <param name="mode">The mode.</param>
/// <returns>The <see cref="Migrator"/> used to apply migrations.</returns>
public IImmutableList <Migrator> Scaffold(ObjectId start, ObjectId end, MigrationMode mode)
{
if (mode == MigrationMode.Downgrade)
{
throw new NotImplementedException(MigrationMode.Downgrade.ToString());
}
return(_repositoryProvider.Execute(_repositoryDescription, repository =>
{
var log = repository.Commits.QueryBy(new CommitFilter
{
SortBy = CommitSortStrategies.Topological | CommitSortStrategies.Reverse,
ExcludeReachableFrom = start,
IncludeReachableFrom = end
});
var deferred = new List <IMigration>();
var result = ImmutableList.CreateBuilder <Migrator>();
result.AddRange(GetLogMigrators(repository, log, deferred, repository.Lookup <Commit>(start), mode));
if (deferred.Any())
{
var uniqueDeferredMigrations = deferred.Distinct(MetadataObjectIdComparer <IMigration> .Instance);
if (result.Any())
{
var toUpdate = result[result.Count - 1];
var newValue = new Migrator(toUpdate.Migrations.Concat(deferred).ToImmutableList(), mode, toUpdate.CommitId);
result[result.Count - 1] = newValue;
}
else
{
result.Add(new Migrator(uniqueDeferredMigrations.ToImmutableList(), mode, end));
}
}
return result.ToImmutable();
}));
}
/// <inheritdoc/>
public ObjectRepositoryChangeCollection Compare(ObjectId oldCommitId, ObjectId newCommitId)
{
if (oldCommitId == null)
{
throw new ArgumentNullException(nameof(oldCommitId));
}
if (newCommitId == null)
{
throw new ArgumentNullException(nameof(newCommitId));
}
return(_repositoryProvider.Execute(_repositoryDescription, repository =>
{
var oldRepository = _objectRepositoryLoader.LoadFrom(_container, _repositoryDescription, oldCommitId);
var newRepository = _objectRepositoryLoader.LoadFrom(_container, _repositoryDescription, newCommitId);
var oldCommit = repository.Lookup <Commit>(oldCommitId);
var newCommit = repository.Lookup <Commit>(newCommitId);
using (var changes = repository.Diff.Compare <TreeChanges>(oldCommit.Tree, newCommit.Tree))
{
ThrowIfNonSupportedChangeTypes(changes);
var modified = CollectModifiedNodes(oldRepository, newRepository, changes, oldCommit);
var added = CollectAddedNodes(newRepository, changes, newCommit);
var deleted = CollectDeletedNodes(oldRepository, changes, oldCommit);
_logger.ChangesComputed(modified.Count, added.Count, deleted.Count, oldCommitId, newCommitId);
return new ObjectRepositoryChangeCollection(newRepository, added.Concat(modified).Concat(deleted).ToImmutableList(), oldRepository);
}
}));
}
/// <inheritdoc />
public TRepository AddRepository(TRepository repository, Signature signature, string message, Func <OdbBackend> backend = null, bool isBare = false)
{
if (repository == null)
{
throw new ArgumentNullException(nameof(repository));
}
if (signature == null)
{
throw new ArgumentNullException(nameof(signature));
}
if (message == null)
{
throw new ArgumentNullException(nameof(message));
}
using (_logger.BeginScope("Adding repository '{Repository}'.", repository.Id))
{
var repositoryDescription = new RepositoryDescription(System.IO.Path.Combine(Path, repository.Id.ToString()), backend);
EnsureNewRepository(repository, repositoryDescription);
LibGit2Sharp.Repository.Init(repositoryDescription.Path, isBare);
return(_repositoryProvider.Execute(repositoryDescription, r =>
{
var all = repository.Flatten().Select(o => new ObjectRepositoryEntryChanges(o.GetDataPath(), ChangeKind.Added, @new: o));
var changes = new ObjectRepositoryChangeCollection(repository, all.ToImmutableList());
var commit = r.CommitChanges(changes, _serializerFactory(), message, signature, signature, _hooks);
if (commit == null)
{
return null;
}
return ReloadRepository(repositoryDescription, commit.Id);
}));
}
}
/// <inheritdoc />
public AbstractObjectRepository LoadFrom(RepositoryDescription repositoryDescription, ObjectId commitId = null)
{
if (repositoryDescription == null)
{
throw new ArgumentNullException(nameof(repositoryDescription));
}
return(_repositoryProvider.Execute(repositoryDescription, repository =>
{
Commit currentCommit;
if (commitId == null)
{
currentCommit = repository.Head.Tip;
commitId = currentCommit.Id;
}
else
{
currentCommit = repository.Lookup <Commit>(commitId);
}
var instance = (AbstractObjectRepository)LoadEntry(commitId, currentCommit[FileSystemStorage.DataFile], string.Empty);
instance.SetRepositoryData(repositoryDescription, commitId);
return instance;
}));
}
/// <inheritdoc />
public IObjectRepository Clone(IObjectRepositoryContainer container, string repository, RepositoryDescription repositoryDescription, ObjectId commitId = null)
{
if (container == null)
{
throw new ArgumentNullException(nameof(container));
}
if (repository == null)
{
throw new ArgumentNullException(nameof(repository));
}
if (repositoryDescription == null)
{
throw new ArgumentNullException(nameof(repositoryDescription));
}
Repository.Init(repositoryDescription.Path);
return(_repositoryProvider.Execute(repositoryDescription, r =>
{
Clone(repository, r, commitId);
return LoadFrom(container, repositoryDescription, r, commitId);
}));
}
void Initialize()
{
_repositoryProvider.Execute(_repositoryDescription, repository =>
{
EnsureHeadCommit(repository);
var branch = repository.Branches[BranchName];
var branchTip = branch.Tip;
BranchTarget = branchTip.Id;
var headTip = repository.Head.Tip;
var baseCommit = repository.ObjectDatabase.FindMergeBase(headTip, branchTip);
var migrationScaffolder = _migrationScaffolderFactory(_repositoryDescription);
var migrators = migrationScaffolder.Scaffold(baseCommit.Id, BranchTarget, MigrationMode.Upgrade);
branchTip = ResolveRequiredMigrator(repository, branchTip, migrators);
ComputeMerge(repository, baseCommit, branchTip, headTip);
});
}
/// <summary>
/// Applies the specified merger.
/// </summary>
/// <param name="merger">The merger.</param>
/// <returns>The merge commit id.</returns>
internal ObjectId Apply(Signature merger)
{
if (merger == null)
{
throw new ArgumentNullException(nameof(merger));
}
var remainingConflicts = _metadataTreeMerge.ModifiedChunks.Where(c => c.IsInConflict).ToList();
if (remainingConflicts.Any())
{
throw new RemainingConflictsException(remainingConflicts);
}
return(_repositoryProvider.Execute(_repositoryDescription, repository =>
{
_metadataTreeMerge.EnsureHeadCommit(repository);
_metadataTreeMerge.RequiredMigrator?.Apply();
return ApplyMerge(merger, repository);
}));
}